Tuesday marks the 25th anniversary of the world's worst nuclear accident, when a blast at the Chernobyl power plant on April 26, 1986, spewed a cloud of radioactive fallout over much of Europe.
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The world’s worst nuclear accident at Chernobyl took place 25 years ago when a blast at the power plant spewed a cloud of radioactive fallout over much of Europe and forced hundreds of thousands from their homes in Ukraine, Belarus and western Russia. Today, a 19-mile exclusion zone around the plant

Wearing a lead protective suit and placing his cameras in lead boxes, photographer Igor Kostin went to the Chernobyl danger zone just a few days after a nuclear power plant reactor exploded in the world's worst atomic accident.
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People stand at the grave of a relative on the eve of Radunitsa, or the Day of Rejoicing, in the abandoned village of Tulgovichi, near the exclusion zone around the Chernobyl nuclear reactor, some 370 km southeast of Minsk, April 23, 2012. Radunitsa is a holiday in the Eastern Orthodox Church for r

Nikolay Kozel visits his childhood home on the eve of Radunitsa, or the Day of Rejoicing, in the abandoned village of Tulgovichi, near the exclusion zone around the Chernobyl nuclear reactor, some 370 km southeast of Minsk, April 23, 2012. Radunitsa is a holiday in the Eastern Orthodox Church for r

Elena Polovchenia visits her childhood house on the eve of Radunitsa, or the Day of Rejoicing, in the abandoned village of Tulgovichi, near the exclusion zone around the Chernobyl nuclear reactor, some 370 km southeast of Minsk, April 23, 2012. Radunitsa is a holiday in the Eastern Orthodox Church

A Belarussian man sits at his relative's grave on the eve of Radunitsa, or the Day of Rejoicing, in the abandoned village of Tulgovichi, near the exclusion zone around the Chernobyl nuclear reactor, some 370 km southeast of Minsk, April 23, 2012. Radunitsa is a holiday in the Eastern Orthodox Chur